330 positions, 5mm stack — the density decision
The Molex 2093111115 is a 330-position female receptacle from the Mirror Mezz 202828 series, built for high-density board-to-board mezzanine interconnects. With 11 rows and a 5mm mated stacking height, it packs a lot of I/O into a tight z-height — the kind of array you spec when a board-to-wire harness would eat too much volume. The 30.0µin gold contact finish handles the wipe and wear from repeated engagement cycles in production-level assembly, which matters more for long-term reliability than the initial contact resistance. Surface-mount termination with board guide and pick-and-place features means it flows through a standard SMT line without extra handling steps.
5mm stack height — the fit constraint
The 0.183" (4.65mm) height above board combined with the 5mm mated stacking height sets the mechanical envelope for the mating male header. If your board-to-board gap is anything other than 5mm, this receptacle won't align — the stack height is the dimension that locks the pair together.